A lush green oasis in the middle of Chicago.

Rifle through images of skyscrapers, Worlds Fairs, and more in the largest public postcard repository in America.

The 30,000-volume library is one of the world's most impressive poetry collections.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

This spiny beast guards an artist's village while vying for the title of largest lobster in the world.

This 140-year-old beacon off the Florida Keys marks the wreck of a Navy ship that once roamed the Caribbean hunting pirates.

The highway's southernmost spot is a beloved local attraction.

"We Seceded Where Others Failed."

This Maine bridge may be the last wire-supported bridge of its type in the world.

Working wool mill used as the exterior for the mill in the 1990 horror film "Graveyard Shift."

This eclectic natural history collection holds everything from a bit of the trans-atlantic cable to Hemingway's marlin.

An idyllic swimming pool tells the tale of Hemingway's trouble with women.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A monument celebrating the idea of reaching inaccessible places.

The largest freshwater lake in the Florida Keys.

A sprawling collection of over 106,000 toys from around the world.

This high desert botanical garden is a unique display of Northern New Mexico's geology.

Life-sized sculpture of a blue whale made of hand-recycled plastic trash.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

This sculpture perfectly models the molecular structure of a drug that was never produced.